0N/A/*
2362N/A * Copyright (c) 2002, 2007, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/Apackage sun.awt.X11;
0N/A
0N/Aimport java.awt.*;
0N/Aimport java.awt.peer.*;
0N/A
0N/Aimport sun.awt.SunToolkit;
0N/A
0N/Aimport sun.awt.X11GraphicsConfig;
0N/Aimport sun.awt.X11GraphicsDevice;
0N/A
0N/Aclass XCanvasPeer extends XComponentPeer implements CanvasPeer {
0N/A
0N/A private boolean eraseBackgroundDisabled;
0N/A
0N/A XCanvasPeer() {}
0N/A
0N/A XCanvasPeer(XCreateWindowParams params) {
0N/A super(params);
0N/A }
0N/A
0N/A XCanvasPeer(Component target) {
0N/A super(target);
0N/A }
0N/A
0N/A void preInit(XCreateWindowParams params) {
0N/A super.preInit(params);
0N/A if (SunToolkit.getSunAwtNoerasebackground()) {
0N/A disableBackgroundErase();
0N/A }
0N/A }
0N/A
1053N/A /* Get a GraphicsConfig with the same visual on the new
1053N/A * screen, which should be easy in Xinerama mode.
1053N/A */
1053N/A public GraphicsConfiguration getAppropriateGraphicsConfiguration(
1053N/A GraphicsConfiguration gc)
1053N/A {
1053N/A if (graphicsConfig == null || gc == null) {
1053N/A return gc;
1053N/A }
1053N/A // Opt: Only need to do if we're not using the default GC
1053N/A
1053N/A int screenNum = ((X11GraphicsDevice)gc.getDevice()).getScreen();
1053N/A
1053N/A X11GraphicsConfig parentgc;
1053N/A // save vis id of current gc
1053N/A int visual = graphicsConfig.getVisual();
0N/A
1053N/A X11GraphicsDevice newDev = (X11GraphicsDevice) GraphicsEnvironment.
1053N/A getLocalGraphicsEnvironment().
1053N/A getScreenDevices()[screenNum];
1053N/A
1053N/A for (int i = 0; i < newDev.getNumConfigs(screenNum); i++) {
1053N/A if (visual == newDev.getConfigVisualId(i, screenNum)) {
1053N/A // use that
1053N/A graphicsConfig = (X11GraphicsConfig)newDev.getConfigurations()[i];
1053N/A break;
1053N/A }
1053N/A }
1053N/A // just in case...
1053N/A if (graphicsConfig == null) {
1053N/A graphicsConfig = (X11GraphicsConfig) GraphicsEnvironment.
1053N/A getLocalGraphicsEnvironment().
1053N/A getScreenDevices()[screenNum].
1053N/A getDefaultConfiguration();
1053N/A }
1053N/A
1053N/A return graphicsConfig;
0N/A }
0N/A
0N/A protected boolean shouldFocusOnClick() {
0N/A // Canvas should always be able to be focused by mouse clicks.
0N/A return true;
0N/A }
0N/A
0N/A public void disableBackgroundErase() {
0N/A eraseBackgroundDisabled = true;
0N/A }
0N/A protected boolean doEraseBackground() {
0N/A return !eraseBackgroundDisabled;
0N/A }
0N/A public void setBackground(Color c) {
0N/A boolean doRepaint = false;
0N/A if( getPeerBackground() == null ||
0N/A !getPeerBackground().equals( c ) ) {
0N/A doRepaint = true;
0N/A }
0N/A super.setBackground(c);
0N/A if( doRepaint ) {
0N/A target.repaint();
0N/A }
0N/A }
0N/A}